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navik [9.2K]
3 years ago
6

help me pls im desperate! A rectangle has a perimeter of 20 units, an area of 24 square units, and sides that are either horizon

tal or vertical. Do the following ordered pairs form the rectangle described above? {(2,4), (6,4), (2,10), (10,4)}

Mathematics
2 answers:
Butoxors [25]3 years ago
8 0
I think the answer is D
valentinak56 [21]3 years ago
4 0

Answer:

D

Step-by-step explanation:

I took an educated guess, I remember doing this.

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A french class has a total of 25 student.The number of males is 7 more than the number of females how many males and how many fe
Lady_Fox [76]

Answer:

16 males and 9 females

Step-by-step explanation:

To solve this we can use a system of equations.

Let's start by naming the number of females x.

The number of males would then be y.

<u>Using these variables, we can set up 2 equations using info provided:</u>

A french class has a total of 25 students, -> x+y=25

The number of males is 7 more than the number of females -> x+7=y

Use substitution to solve.

<u>From the second equation:</u>

x+7=y

Subtract 7 from both sides.

x=y-7

Substitute that into the first equation.

x+y=25

y-7+y=25

Combine like terms.

2y-7=25

Add 7 to both sides.

2y=32

Divide both sides by 2.

y=16

Substitute y=16 into equation 2.

x+7=y

x+7=16

Subtract 7 from both sides.

x=9

Therefore, there are 16 males and 9 females in the french class.

3 0
3 years ago
Read 2 more answers
Write an equation of the line in slope-intercept form
Agata [3.3K]

Answer:

y=2x-2

Step-by-step explanation:

Slope intercept form = y=mx+b

Where m=slope and b= y intercept

Reminder: the y intercept is where x=0

Looking at the graph, the y intercept is given as (0,-2)

There are also two points given (0, -2) and (2,2)

Reminder: to find the slope, divide the changes in y by the changes in x or substitute the numbers into this equation: y2-y1/x2-x1

2-(-2)/2-0=4/2

m=2

Now that we have the slope and y intercept, sbstitute into the equation y=mx+b:

y=2x-2

5 0
3 years ago
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What does x equal in the equation 3x=x+24
erastovalidia [21]

3x = x + 24

3x - x = 24

2x = 24

x = 24 : 2

x = 12

8 0
3 years ago
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I don’t even know the answer to this one plz help me
Yuki888 [10]

Answer:

divide both sides by 4/9

3 0
3 years ago
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Whats longer 3 hours or 175 minutes
avanturin [10]
3 hours is longer than 175 minutes. An hour is 60 minutes long, so just multiply that by 3 and compare your answer to 175.

60 x 3 = 180
180 > 175

Therefore, 3 hours is longer than 175 minutes.

Hope this helps!
6 0
3 years ago
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